has partproximo-distal subdivision of respiratory tractpair of lungslower respiratory tractEHDAA2:0001036EMAPA:16738FMA:45662MA:0000435OpenCyc:Mx4rQRqjUgAKEdyHxgDggVfs8gThe segment of the respiratory tract that starts proximally with the trachea and includes all distal structures including the lungs[WP,modified]UBERON:0001558VHOG:0000382lower respiratory systemuberon